I’m glad you are thinking about the principles and adopting them in your work. However, I’m slightly worried by the way you have phrased your question. It sounds as if you already have some kind of solution(s) in mind and you are looking for some people who might have a problem to match your solution. I hope that is not the case.
In my experience, it’s best to start by working through, and in partnership with, NGOs and other organisations that are already deeply involved in working around the problem area that you are exploring.
It is very difficult for highly privileged people such as ourselves to build trusting and equitable relationships and to develop really open, honest and fruitful communications with people who are extremely marginalised - who may also speak a different language. As a result, we never really get to understand the complexities that we think we might be designing for, and we always run the risk of promoting a false, tokenistic version of ‘participation’.
Of course, you might be developing solutions that are for use by NGOs - in which case perhaps you should approach some of the NGO networks and ask them for help.
Happy to chat further if needed